International Journal of Respiration, Volume 37, Issue 22,2017, Pages 1745-1749, doi:10.3760/cma.j.issn.1673-436X.2017.22.014
International Journal of Respiration, Volume 37, Issue 22,2017, Pages 1757-1760, doi:10.3760/cma.j.issn.1673-436X.2017.22.016
International Journal of Respiration, Volume 37, Issue 22,2017, Pages 1696-1699, doi:10.3760/cma.j.issn.1673-436X.2017.22.004
International Journal of Respiration, Volume 37, Issue 22,2017, Pages 1732-1734, doi:10.3760/cma.j.issn.1673-436X.2017.22.011
International Journal of Respiration, Volume 37, Issue 22,2017, Pages 1681-1684, doi:10.3760/cma.j.issn.1673-436X.2017.22.001